add moar bleeptrack to "papers"

README.md

@@ -17,9 +17,11 @@ A curated list of code and resources for computer-controlled drawing machines an
   - [Vector Utilities](#vector-utilities)
   - [Fonts](#fonts)
 - [Inspiration, Instruction, and Research](#inspiration-instruction-and-research)
-- [Manuals and Ephemera](#manuals-and-ephemera)
+- [Manuals, Ephemera, Papers, and Patents](#manuals-ephemera-papers-and-patents)
   - [Manuals](#manuals)
   - [Ephemera](#ephemera)
+  - [Papers](#papers)
+  - [Patents](#patents)
 - [Community](#community)
 - [Plotter Art For Sale](#plotter-art-for-sale)
 - [Other Awesomes](#other-awesomes)
@@ -175,6 +177,7 @@ Single-line vector fonts or "engraving fonts".
 - [svg-fonts](https://gitlab.com/oskay/svg-fonts) - Single-line fonts in an SVG format, mainly for use with the [Hershey Text](https://gitlab.com/oskay/hershey-text) Inkscape plugin.
 - [CNC Text Tool](https://msurguy.github.io/cnc-text-tool/) - Browser-based Hershey Text tool with export to SVG.
 - [hf2gcode](https://github.com/Andy1978/hf2gcode) - Generates G-code from text with a Hershey font.
+- [FifteenTwenty: Commodore 1520 plotter font](https://github.com/scruss/FifteenTwenty) – [Blog post](https://scruss.com/blog/2016/04/23/fifteentwenty-commodore-1520-plotter-font/) about the creation of this font from the original ROM.
 
 ## Inspiration, Instruction, and Research
 
@@ -202,7 +205,6 @@ Blog posts, articles, tutorials, galleries, videos, et cetera.
 - [CuriousMarc: HP 7475A Plotter and HPGL Demo](https://www.youtube.com/watch?v=Tr7Mbw9gLpk) - Video of an HP 7475A plotting some demos.
 - [CuriousMarc: Refilling or Replacing Vintage HP Plotter Pens](https://www.youtube.com/watch?v=h-oj4HrTH14) - Video showing how to open, clean, and refill vintage HP plotter pens.
 - [Commodore 1520 Plotter Demonstration](https://www.youtube.com/watch?v=QwPTluBvKLU) - Video of the Commodore 1520 plotter in action, including a cover-off shot of the mechanism.
-- [Vera Molnar: Toward Aesthetic Guidelines for Paintings with the Aid of a Computer](https://rednoise.org/softas/uploads/molnar.pdf)
 - [Tech Tangents: Gold Standard Plotter - HP 7475A](https://www.youtube.com/watch?v=8785ktWD7vQ) - Video with some HPGL and plotter history, plus operating an HP 7475A from an IBM 5160 microcomputer.
 - [curiousmarc.com: HP 7475A Plotter](https://www.curiousmarc.com/computing/hp-7475a-plotter) - A great collection of info, ephemera, plot files, three YouTube videos, and a 3d-printable replacement part for the HP 7475A.
 - [From Lettering Guides to CNC Plotters](https://www.typotheque.com/articles/from-lettering-guides-to-cnc-plotters-a-brief-history-of-technical-lettering-tools) - "A Brief History of Technical Lettering Tools".
@@ -212,10 +214,13 @@ Blog posts, articles, tutorials, galleries, videos, et cetera.
 - [Bottle Plotter](https://vgnotepad.blogspot.com/2024/04/bottle-plotter.html) – Blog post about building a cylindrical pen plotter for drawing on wine bottles.
 - [Buildlog.net Atari 1020 Plotter Retrofit](https://www.buildlog.net/blog/2019/10/inktober-project-2019-post-5/) – Blog post and video about converting an Atari 1020 plotter to use a ESP32-based GRBL controller.
 - [Texas Instruments HX-1000 Plotter Photos](http://www.hexbus.com/TI-99_4A_Home_Computer_Page/Hexbus_HX-1000_Printer_Plotter.html) – Photo gallery of the plotter's exterior, interior, and packaging.
+- [Making cheap HP plotter pens](https://scruss.com/blog/2014/04/06/making-cheap-hp-plotter-pens-yet-another-hp-gl-viewer/) – Blog post mainly about using vinyl cutter parts as pen holders.
+- [Marcel Schwittlick and The Long Run](https://www.artxcode.io/journal/marcel-schwittlick-the-long-run) – Interview with Marcel, and lots of photos and videos of his work and workspace.
+- [Lars Wander and Mixing Paint With Code](https://www.artxcode.io/journal/lars-wander-interview) – Interview with Lars Wander, plus art and videos.
 
-## Manuals and Ephemera
+## Manuals, Ephemera, Papers, and Patents
 
-Scanned plotter manuals and marketing ephemera, mostly from the [Internet Archive](https://archive.org)
+Scanned plotter manuals, marketing ephemera, academic papers, and patents. Thank you to the [Internet Archive](https://archive.org) for most of these.
 
 ### Manuals
 
@@ -309,6 +314,17 @@ Sorted alphabetically by company name and product name.
 - [IEEE Electronic Systems News Autumn (1985)](https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5345111) – Review of the three-color Penman robotic plotter.
 - [Apple II Business Graphics Film (1982)](https://archive.org/details/apple-ii-business-graphics) – There's a Strobe Model 100 Graphics Plotter drawing bar charts at 4:57.
 
+### Papers
+
+- [Toward Aesthetic Guidelines for Paintings with the Aid of a Computer (1975) (PDF)](https://rednoise.org/softas/uploads/molnar.pdf) – Vera Molnar
+- [Pen Plotter as a Low-Cost Platform for Rapid Device Prototyping with Solution-Processable Nanomaterials (2023) (PDF)](https://onlinelibrary.wiley.com/doi/pdf/10.1002/adem.202300226)
+- [Preparation of V2O5 Thin Film by Sol–Gel Technique and Pen Plotter Printing](https://www.proquest.com/docview/2791602751)
+- [PatternPortrait: Draw Me Like One of Your Scribbles (2024)](https://arxiv.org/abs/2401.13001)
+
+### Patents
+
+- [Adaptor for universal X-Y plotter pen](https://patents.google.com/patent/US4943817)
+
 ## Community
 
 Where to find other plotter and drawbot friends.